Fault Current Limiters

SFCL test module being removed from LN2 bath after test at KEMA.
In today's high voltage transmission network, the introduction of new generating facilities, Independent Power Producers, and network upgrades can result in fault-current overduty on existing protective equipment. Conventional solutions to fault current overduty problems such as the construction of new substations, splitting existing substation busses or multiple circuit breaker upgrades can be disruptive and very expensive. Other solutions such as current limiting reactors have unwanted side effects and can compromise system stability.

  ...  the mark of excellence
A SuperPower'd High Temperature Superconducting (HTS) Fault Current Limiter (SFCL) could offer a new solution to fault current over-duty problems with operational feasibility made possible by SuperPower's second-generation (2G) HTS material, which has very rapid response and recovery times compared to alternative materials.

Superconducting Fault Current Limiter (SFCL)

SuperPower's SFCL technology is intended to offer the following features:
  • Modular & Scaleable - Enables scaling to high voltage and current with customization to the user's requirements
  • Transparent during normal operation - Essentially no losses or voltage drop across the device during normal operation
  • Passive - Detection & insertion of current limiting impedance without active monitoring or controls., inserting impedance only during fault conditions
  • Reliability - Built in redundancy in a matrix configuration
  • Economically competitive to existing conventional solutions
  • Environmentally friendly - No flammable or environmentally hazardous oil
Furukawa Electric Co., Ltd.
SuperPower Inc. is subsidiary
of Furukawa Electric Co., Ltd.
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